Portable hoisting apparatus.



No. 761,157. w PATENTED MAY 31, 1904.

4 I L.- DLPRAZEE.

PORTABLE HOISTING APPARATUS.

- APPLICATION FILED APR. 29, 1903 N0 EODEL. 3 SHEETS-SHEET 2.

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L.'D. FRAZEB. PORTABLE HOISTING APPARATUS.

APPLICATION FILED APR. 29, 1903.

3 SHEETS-SHEET 3.

N0 MODEL.

v m n g" 1': Mains PETERS c0 Pgwrmumm wnsum LORENZO DOW FRAZEE,

Patented May 31, 1904.

PATENT OFFICE.

OF TORONTO, CAN ADA.

PORTABLE HOISTING APPARATUS-1 SPECIFICATION forming part of LettersPatent No. 761,157, dated May 31, 1904.

Application filed April 29, 1903.

1'0 all whom it may concern:

Be it known that I, LORENZO Dow FRAZEE, a British subject, residing at439 Spadina ave nue, Toronto, in the county of York, in the Province ofOntario, Canada, have invented a new and useful Improvement in PortableHoisting Apparatus, of which the following is a specification.

The invention consists of a portable hoisting apparatus, and it has beenparticularly constructed for the purpose. of hoisting and puttingthrough windows in the upper stories of buildings large, heavy, andbulky articles.

The apparatus isso constructed that it may be set up to communicate withthe first, second, or third stories of buildings. The apparatus is soconstructed that it may be quickly taken down or put up and compactlyput together for transportation.

One of the chief advantages gained by my invention is that largearticles may be put through the windows, as the parts of the apparatusfitting into the windows take up very little space, and I obviate theotherwise cumbersome block-and-tackle system where heavy timbers arenecessary.

This invention has for one of its chief purposes the advantages ofhoisting pianos with little or no strain to the instrument, whereas withother systems they are very liable to strain and scratches.

My invention also obviates the troublesome means of taking pianos toupper stories in houses where one has to contend with narrow and windingStairways, as tipping and jarring a piano is always injurious. I v

In the drawings, Figure 1 is a perspective view of the hoistingapparatus in operation with a third-story window. Fig. 2 is aperspective view of the parts of the apparatus that enter the interiorof the building. Fig. 3 is a perspective view of the base and hoistingmechanism. 7 Figs. 4 5, and 6 are sectional details of the tubulartelescopic mast. Fig. 7 is a perspective view of the carrier with apivotal sling attachment.

Like characters refer to like parts throughout the specification anddrawings.

a is the base, consisting of a rectangular frame of a suitable size andconstruction. I

Serial No. 154,885. (No model.)

Extending upwardly from the base a is a pyramidal-shaped frame 6.Bracing the frame I) with the base a are truss-rods d. Bracing the upperpart of the frame a are truss-rods e, and mounted in the upper part ofthe frame 5 is the hoisting-Windlass c.

Fastened to the base a is the end of a telescopic tubular mast f. Themast may be made in two or more telescopic sections. In the drawings Ishow two sections g and g. The lower part g of the mast f is pivotedbetween suitable lugs h, bolted to the base a. Projecting outwardly fromthe upper part of the frame I) is a keeper c, which surrounds and bracesthe mast and keeps it erect and in a vertical position. Connected withthe upper end of the mast f and projecting in through one of the upperwindows in a dwelling-house,

- as shown in the drawings, is a pair of tracks on suitable standardsis. The standards is are,

set in a suitable base Z, fitted to the floor of the room. The upperends of the standards is connect with projections m on the side of thetracks j.

Each of the standards consists of two parts is and 70 The part if isfitted within the part is for the purpose of adjusting to the differentheights of windows. In adjusting the standards they are locked in thedesired position by a wedge-lock n, fitted between a collar on the part7c and the part 70 To brace the tracks firmly from lateral andlongitudinal displacement, I fasten to each side of the window-frames aclamp 0, and to the top of each of the lugs m is a clamp 0. Connectingthe clamp 0 with the clamp 19 is a truss-rod q.

Mounted on each of the tracks 7' are trolley's 1-. The winding-Windlassc is mounted in bearings s, fitted to thetop of the frame I), the drumof the Windlass being made in two parts 0 and c and are mounted on ashaft '0 On the outer ends of the shaft o are cranks u and u. Fastenedto the shaft between the ends of the drum parts 0 and 0 and the bearingsare ratchets o, and bolted to the bearings s are brackets w. Pivoted tothe brackets w are pawls 0a.. The pawls w engage with the ratchets o andprevent backward turning of the ward travel of the trolleys. 'ings onthe inner ends of the tracks 7' is a shaft 5, and mounted on each end ofthe shaft are pawls 8. I are cranks 9. Passing around the drums 6.tervals are a series of notches Windlass as the apparatus is beingoperated. Passing around the drum parts o and c are hoisting-cables yandy. The cables pass upwardly and over sheaves 2, fastened in the side ofthe track 1', then overapulley z in the trolley r, and down and areconnected with the hangers l and 2 of the carrier 3. The drums 0 and 0are held together by clamps o oppositely disposed and fastened to therims of the drum. The purpose of making the drums of the Windlass in twoparts is that one drum or other may be rotated to tighten or slackeneither of the cables 3/ and y independently. The drums may be loosenedto r0- tate independently by loosening the clamps o Fastened to each ofthe inner sides of the tracks 7' are stop-blocks 4 to check the out-Fitted in bearadjacent to the tracks are winding-drums 6.

Mounted on the same, shaft are ratchets 7.

The drums 6 and ratchets 7 are rigidly keyed on the shaft 5. Pivoted tothe sides of the tracks and engaging with each of the ratchets On theouter ends of the shaft 5 and out through the window and connected to aprojecting lug 10 on each of the trolleys r is a winding-cable 11.

In the lower part g of the mast f and extending to slightly above thetop is a rod Along one of the edges at predetermined in- Fitted to theside face of the rod g is a similar rod 9 somewhat shorter than the rodThe rod '9 is likewise provided with similar notches g, arranged at thesame intervals apart, and

is arranged to be raised or lowered to bring the notches together ormove them apart and provide a plain edge. Passing through the mast f isa slot lb, through which passes an adjusting and locking bolt 71/engaging with the rod 9 Pivoted to the lower inside. end of the part 9of the mast f is a bifurcated spring-dog if, the bifurcation-jaw ridingon the notched edges of the rods 9 and 9*. Clamped around the lower partof the part 9 of the mast f isawindlassm- Passing around the drum on ofthe Windlass m is a cable of.

The cable m asses around the drum m through an opening m in the part gof the mast f, upward and over a pulley a in the rod 9 and connects witha lug n in the part g of the mast f.

To raise the mast f to the required elevation, the bolt 71 is adjustedand drawn upward, which raises the rod g. The rod g is forced upwarduntil the notches g are brought opposite the notches g in the stationaryrod g Then the crank m of the Windlass m is turned to rotate the drum722 which winds up the cable in, passing over the pulley n in the rod gand raises the part g of the shaft 7 upward, the jaws of the dog [b3engaging with the edges of the rods g and 9 until the properelevation'is reached, when the upward motion ceases and the dog 7L3drops into the notches g and g and is prevented from dropping bygravitation.

To lower the rod, the bolt k is drawn downward, which draws with it therod g, which causes the notches g to be moved into different positionsand provides a flush edge along the rods 9 and g and disengages the dogif from the notches and allows the dog if to slide along same withoutspringing into any of the lower notches.

In operating the apparatus to hoist freight the cranks a and a areturned to rotate the drums 0 and '0, keyed to the shaft 41 As the drumsare being rotated they wind up the cables 3/ and g, which pass oversheaveszin the tracks 1' and over the pulleys a in the trolleys r,mounted on the tracks ,7 and down and are hooked to the rings 8 and s inthe hangers l and 2 of the carrier 3. When the cables y and y have beenwound up to their full extent, the pins 8 and s, projecting from thesides of the hangers 1 and E2, engage with trip-hooks s and s, pivotedto the sides of the trolleys 7'. When the carrier 3 has been attachedwith the trolleys r, the cranks 9 on the shaft 5 are turned, which inturn rotates the drums 6 and winds up the cables 11, fastened to thetrolleys r, and draws them inward along the tracks j, carrying withinthe carrier 3 until the inward travel is checked by the lugs m on thetracks f. To lower the carrier to the floor, the pawl or, engaging withthe ratchet o of the hoisting-Windlass c is tripped, and by turning thecranks a audio to the reverse or backward the cables y and y areslackened and permit the carriers 3 being lowered to the floor.

To remove freight from a building, the reverse operation is carried outwith the addition to disengage the carrier from the trolleys thetrip-hooks's and s" are tripped by cords 15, connected with the hooks sand s and passed in through the windows,where they may be operated bypersons in the building.

In Fig. 7 I show connected with the rings of the carrier a supplementarypivotal coups ling to be used in connection with the hoisting-cables 3/and y where it is necessary to turn the carrier in the oppositedirection to that shown in the drawings, Fig. 1} in hoisting.

What I claim as new, and desire to secure by Letters Patent, is

1. In a portable hoisting apparatus, a baseframe, an upright frameerected thereon, a telescopic extension-mast, set and extendedvertically from said base, tracks engaging with the upper part of saidmast and the window, door, or other openings, of a house or building,the inner ends of said track supported on adjustable standards, ahoisting device connected with said upright frame, and trolleys mountedon the said tracks, substantially as specified.

2. In a portable hoisting apparatus, a baseframe, an upright frameerected thereon, a telescopic tubular extension mast erected from thesaid base-frame, tracks engaging with the upper part of said mast, andthe Windows or door of a house or building, the inner ends of saidtracks supported on standards, or other supports, said standardsvertically adjustable to the said tracks, a hoistingwindlass consistingof a double winding-drum, with suitable revolving and locking gear,mounted in the said upright frame, hoistingcables engaging with thedrums, and trolleys mounted on the said tracks, the free ends of saidcables adapted to engage with a carrier, the said carrier adapted toengage and connect with said trolleys, substantially as specified.

3. In a portable hoisting apparatus, a suitable base and frame, atelescopic tubular or other adjustable mast erected from said base, akeeper surrounding and fastening said 'mast with frame part of saidbase, tracks connected with the upper part of said mast, and extendingat right angles therefrom, adjustable extension-standards supporting theinner ends of said tracks, trolleys mounted on the said tracks, ahoisting-Windlass mounted in the said base and frame, cables connectedwith drums of said Windlass, the cables passing over sheaves in the saidtracks, and over pulleys in the said trolleys, the free ends of saidcables adapted to engage with hangers of a suitable carrier, the hangersof said carrier adapted to engage and connect with trip-hooks of saidtrolleys, a winding-Windlass mounted on a shaft set in bearings inthe'inner ends of said tracks, and cables connecting said trolleys withdrums of said Windlass, suitable revolving-and locking gear inconnection with said Windlass, substantially as specified.

4. The combination in a portable hoisting apparatus, of a tubulartelescopic extensionmast, two notched bars passing throughthe center ofthe largertelescopic section, a springdog pivoted to the lower inside ofthe smaller telescopic section, said dog adapted to engage with thenotches on the said rods, and maintain the smaller telescopic section inits elevated position, and means to raise the extension part of saidmast, substantially as specified.

5. The combination in a portable hoisting apparatus, of a tubular orother telescopic extension mast, tWo notched bars passing through thecenter of the larger telescopic section, a spring-dog pivoted to-thelower inside of the smaller telescopic section, said dog adapted toengage with the notches in the said rods, a Windlass clamped to thelarger telescopic section, a cable connected with the drum of saidWindlass, said cable passing through an opening in the'said mast, and upand over a pulley in one of the said rods, and

6. The combination in a portable hoisting.

apparatus, of a tubular telescopic extensionmast, two notched barspassing through thecenter of the larger telescopic section,aspringdogpivoted to the lower inside of the smaller telescopic section, said dogadapted to engage with the notches in the said rods, one of the saidrods adapted to be adjusted, and throw said dog out of engagement withnotches in said rods, and a clamp adapted to hold said rod in itsadjusted position, said clamp engaging with the lower telescopicsection, and means for lowering and raising said smaller telescopicsection, substantially as specified.

7. The combination in a portable hoisting apparatus of a Windlassmounted in a suitable frame, said Windlass consisting of twowinding-drums mounted on a shaft, the said shaft fitted in bearings inthe said frame, a clamp member coupling the said drums, the said drumsadapted to be used independently or together, cables connected with thesaid drums, and in engagement with trolleys mounted on suitable elevatedtracks, the free ends of ..the

said cables connected with a suitable carrier, and means for rotatingand locking said drums, substantially as specified.

8. The combination in a portable hoisting apparatus ofa suitablecarrier, said carrier consisting of a platform, said platform providedwith hangers, the said hangers having eyes in which are hooked the freeends of hoisting-cables, the said cables passing over pulleys introlleys, the said pulleys mounted on overhead tracks, the said cablescarried down and in engagement with a Windlass mounted in a frame, thesaid Windlass arranged near the base of an elevated telescopicextension-mast, the said mast supporting the one end of the said tracks,the said hangers having pins projecting from the sides thereof,

and the said pins adapted to engage with triphooks pivoted to the sidesof the said trolleys, substantially as specified.

9. In a hoisting apparatus the combination of a mast, atrack runninginto an opening in a building, a carrier or platform for carrying aload, and means for leveling up said carrier by tightening or slackeningone of the cables, and means for raising or lowering either side of thesaid carrier, substantially as specified.

Signed at Toronto this 23d day of April, 1903.

L. D. FRAZEE.

